For experiments in optics with the Demo Physics board. Magnetically adherent Plexiglas object with indicated centre line. White coloured on back side. Focal lengths: 12 cm and 27 cm. Diameter: 18 cm.
| Focal lengths | 12 cm and 27 cm |
| Diameter | 18 cm |
| Thickness | 1.5 cm |
All units adapted for 110V/60Hz. Contact us for volume pricing and grant assistance.